72516050 has 24 divisors (see below), whose sum is σ = 142815636. Its totient is φ = 27299840.

The previous prime is 72516029. The next prime is 72516053. The reversal of 72516050 is 5061527.

It can be written as a sum of positive squares in 6 ways, for example, as 60949249 + 11566801 = 7807^2 + 3401^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72516053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41807 + ... + 43506.

Almost surely, 2^72516050 is an apocalyptic number.

72516050 is a deficient number, since it is larger than the sum of its proper divisors (70299586).

72516050 is a wasteful number, since it uses less digits than its factorization.

72516050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85342 (or 85337 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 72516050 is about 8515.6356192594. The cubic root of 72516050 is about 417.0083135670.

Adding to 72516050 its reverse (5061527), we get a palindrome (77577577).

The spelling of 72516050 in words is "seventy-two million, five hundred sixteen thousand, fifty".